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https://issues.apache.org/jira/browse/SOLR-5016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13706942#comment-13706942
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Jeroen Steggink commented on SOLR-5016:
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Grid based faceting is also a kind of clustering, though not dynamic, but
fixed, and would be a great addition to the spatial features.
Region based clustering could indeed be solved by field value faceting on
terms. However, if it wouldn't be based on terms but based on polygons it would
be something different. I haven't yet tried to create facet queries based on
BBOXs.
> Spatial clustering/grouping
> ---------------------------
>
> Key: SOLR-5016
> URL: https://issues.apache.org/jira/browse/SOLR-5016
> Project: Solr
> Issue Type: Wish
> Components: spatial
> Reporter: Jeroen Steggink
> Priority: Minor
> Labels: clustering, grouping, spatial
>
> Hi,
> It would be great if we could have some sort of spatial clustering/grouping
> of points for efficiently plotting them on a map.
> I could think of clustering based on the following parameters:
> - Based on regions: continents, countries, statis, cities, etc;
> - A fixed number of clusters;
> - Radius, bbox, polygon
> Retrieved result would give the center of the cluster, average location or a
> polygon of the cluster.
> An example of a usecase would be something like this:
> https://developers.google.com/maps/articles/toomanymarkers#markerclusterer
> Jeroen
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